Horizontal - Tektronix 2235 Instruction Manual

Preparation for Use—2235 Operators
and Channel 2 Input signals at sweep speeds from
0.5 ms per division to 0.5 s per division.
TRIG VIEW—Press in and hold this push button
to display a sample of the signal present in the A
Trigger amplifier (for all A SOURCE switch
settings). All other signal displays are removed
while the TRIG VIEW push button is held in.
BW LIMIT—When pressed in, this push-button
switch limits the bandwidth of the vertical ampli
fier to approximately 20 MHz. Push button must
be pressed a second time to release it and regain
full 100-MHz bandwidth operation. Provides a
method for reducing interference from high-
frequency signals when viewing low-frequency
signals.
POSITION Controls—Used to vertically position the
display on the crt. When the SEC/DIV switch is set to
X-Y, the Channel 2 POSITION control moves the
display vertically (Y-axis), and the Horizontal
POSITION control moves the display horizontally
(X-axis).
GND Connector—Provides direct connection to the
instrument chassis ground.
SERIAL and Mod Slots—TheSERIALslot is imprinted
with the instrument's serial number. The Mod slot
contains any option number that is installed in the
instrument.
HORIZONTAL
Refer to Figure 2-5 for location of items 18 through 24.
A and B SEC/DIV Switches—Used to select the sweep
speeds for the A and B Sweep generators in a 1-2-5
sequence. To obtain calibrated sweep speeds, the A
and B SEC/DIV Variable control must be in the
calibrated detent (fully clockwise).
A SEC/DIV—The calibrated sweep speed is shown
between the two black lines on the clear plastic
skirt. This switch also selects the delay time for
delayed-sweep operation when used in conjunction
with the B DELAY TIME POSITION control.
B SEC/DIV—The B Sweep speed is set by pulling
out the (DLY'D SWEEP PULL) knob and rotating
it clockwise to a setting opposite the white line
scribed on the knob. The B Sweep circuit is used
only for delayed-sweep operation.
100 MHz OSCILLOSCOPE
Jl&Vf
ft
^ POSITION ^POSITION
o
POSITION ::>
VERTICAL MODE
2 TRIG VIEW BW LIMIT
HORIZONTAL MODE
riUCf MTA
□ □
iNvtRT CM 2 VOLTS/DIV
.^: IN
PROBE
CHI VOLTS/DIV
10.
PROBE
AandB SEC/DIV
•j£ .M NND
CH 2 OR D CHIorQ
Mm tuWER
4207-06
Figure 2-5. Horizontal controls.
2-5